Hey everyone, I recently bought a used bike and I'm already having problems...

The tach needle on my 2006 stopped moving. It stays put around 2,500 RPMs, even on startup. The bottom left LED on the revolution circle is also out. Everything else on the cluster is working (clock, speedometer, temp, fuel, indicators, etc.).

What's interesting is the LED sometimes flickers on/off when riding, and sometimes the needle flicks up randomly (but I haven't seen it do that in awhile).

I pulled some pictures from Google to help show the problem. The attached picture shows the LED I'm referring to.

Any ideas? I'm thinking if it was a fuse, more things would be broken than just the needle?

To use it in a sentence
In other words displaying interest and or admiration or as you put it "leg humping" is so fouled by your judgement that you're statement is both dehumanizing and so lacking in morality that it brings shame upon you.

the rest of us who haven't committed such obvious acts of player hating are full of win, however.

i've had worse when my gauge acted funny, first the tach needle stopped moving then all of the digital displays started screwing around until it no longer had any display & this was a couple of days before my race, tried to fix it by removing the gauge cleaning the internals & connections but still no luck so i just said fack it & left it alone, a couple of hours later the damn thing all worked again.

Lately, the needle has been staying at the same spot, doesn't matter if it's on or off. It vibrates a little when riding, but not enough to move it. A few weeks ago it would randomly jerk up and down, but I haven't seen it do that in awhile.

It's weird because the needle stays around 2 even when powered off, instead of just hanging loosely at 0. The needle also doesn't even budge when starting up.

The LED doesn't look loose or anything, and it's definitely not blocking the needle.

Does the needle swing all the way up when you turn on the bike? The normal cycle through, as the speed goes all the way as well?

Try checking the back of the gauges to make sure everything is plugged in all the way then check each wire, maybe a wire got loose.

I had the same problem, the needle would swing all the way up then nothing when I rev'd the bike. It was an ECU issue for me, replaced it and worked fine. Try seeing if you know anyone and switch gauges and ECU.

As far as know the ECU is nearly indestructible! If its anything it's not that! So if it is you are a one of! The ECU is just a translator, if anything it would relate info incorrectly but even then it would manifest in other areas as well! For instance a rev needle error would also affect gas mileage and result in back fire etc.

To use it in a sentence
In other words displaying interest and or admiration or as you put it "leg humping" is so fouled by your judgement that you're statement is both dehumanizing and so lacking in morality that it brings shame upon you.

the rest of us who haven't committed such obvious acts of player hating are full of win, however.

impossible for the ECU to get loose with how the sockets are connected, try getting a can of electronic contact cleaner & spray the connections going to the gauge & ECU, let dry & plug them in again, cross your fingers.

Are the LEDs in your cluster stock(orange) or changed in color like the one in the picture? If they have been changed, it is likely they unsoldered the tach needle. May have not gotten a good solder joint when reinstalling.

Looks like it has been modified. I'm not sure how people change the color like that but if you have to solder LEDs to the board, that is very easy to **** up. Hehe I had a very similar issue, it ended up being that two wires were pinched in the middle of the harness. Honda uses incredibly cheap wiring.

My first guess is the cluster board is messed up because it was improperly soldered. Those modifications have to be done extremely delicately. Other than that it could be wiring. Try taking off a couple fairings and wiggling the harness.

Another thing to consider is that something on the circuit board may be shorting out. Check for any solder that might be shorting out two or more traces on the circuit board. The person that did this mod might have accidentaly gotten solder on the board where it shouldn't be.

I had this happen to me with the needle after a cluster mod for LEDs. There are two ways to pull the needle off when you do the MOD. You can de-solder it or pull the needle itself off. Most people de-solder the needle. If the 4 solder joints are not redone correctly then the joints will come loose. This may be your issue. I have attached a link for reference.

I run UsSpeedo a speedometer shop in flint Michigan. my guess is that whoever did the led swap either did a bad job desoldering the tach motor and broke one of the leads or pulled the needle off of the motor and pulled the metal stem out of it. either way the fix is to replace the motor. i can repair it for $125. ill fix or replace the leds that aren't working inside while i'm in there.

I finally took it apart this past weekend and found that the needle wasn't connected all that well... all I had to do with solder it back on. Found a lot of other problems, but they all seem manageable. As for the led, I put some solder on it but it's still flickering. Probably just going to try and replace it later down the road...

Thanks for the help everyone!

edit: Also, the hid ballast was pretty messed up, it shorted out my front left turn signal and was causing problems with my low beams. Not sure if it was a related problem, but meh